Read the source of the allusion.
In Greek mythology, Sisyphus is punished by the gods with the task of eternally
rolling a boulder up a hill just to watch it roll down again.
What is the meaning of the allusion in the sentence below?
In the mornings, working alone in the cold, I sometimes imagined myself to be trapped in
a Sisyphean nightmare.
unnatural
claustrophobia-inducing
interminable
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